RoutedEvents: Key Modifiers : RoutedCommand « Windows Presentation Foundation « VB.Net

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VB.Net » Windows Presentation Foundation » RoutedCommandScreenshots 
RoutedEvents: Key Modifiers
RoutedEvents: Key Modifiers
    
<Window x:Class="RoutedEvents.KeyModifiers"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="KeyModifiers" Height="300" Width="300">
  <StackPanel Margin="5">
    <TextBox KeyDown="KeyEvent"></TextBox>
    <TextBlock Name="lblInfo"></TextBlock>
    <Button Click="CheckShift">Check Current Shift State</Button>
  </StackPanel>
</Window>

//File:Window.xaml.vb

Imports System
Imports System.Collections.Generic
Imports System.Text
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Data
Imports System.Windows.Documents
Imports System.Windows.Input
Imports System.Windows.Media
Imports System.Windows.Media.Imaging
Imports System.Windows.Shapes

Namespace RoutedEvents
  Public Partial Class KeyModifiers
    Inherits System.Windows.Window
    Public Sub New()
      InitializeComponent()
    End Sub

    Private Sub KeyEvent(sender As Object, e As KeyEventArgs)

      lblInfo.Text = "Modifiers: " & e.KeyboardDevice.Modifiers.ToString()

      If (e.KeyboardDevice.Modifiers And ModifierKeys.Control= ModifierKeys.Control Then
        lblInfo.Text += vbCr & vbLf & "You held the Control key."
      End If
    End Sub

    Private Sub CheckShift(sender As Object, e As RoutedEventArgs)
      If Keyboard.IsKeyDown(Key.LeftShiftThen
        lblInfo.Text = "The left Shift is held down."
      Else
        lblInfo.Text = "The left Shift is not held down."
      End If

    End Sub
  End Class
End Namespace

   
    
    
    
  
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